四气门汽油机中空气运动以滚流为主,滚流有助于改善燃烧过程.本文用ALE方法进行了四气门汽油机中滚流运动的三维数值模拟.计算结果展示了在滚流缸内三维空间中形成及演变过程,及其湍动能场的变化规律.与实验结果的比较表明两者吻合较好,验证了计算结果的可靠性.
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